S-1135 Datasheet PDF
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HIGH RIPPLE-REJECTION LOW DROPOUT
MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1135 Series
S-1135 Series, developed using the CMOS technology, is a
positive voltage regulator IC which has the low dropout
voltage, the high-accuracy output voltage and the low current
consumption (300 mA output current).
A 1.0 µF small ceramic capacitor can be used. It operates with
low current consumption of 45 µA typ.
The overcurrent protection circuit prevents the load current
from exceeding the capacitance of output transistor. The
power-off circuit ensures longer battery life.
Various capacitors, also small ceramic capacitors, can be used
for this IC more than for the conventional regulator ICs which
have CMOS technology.
Furthermore a small SOT-89-5, SOT-23-5, and HSNT-6A
packages realize high-density mounting.
„ Features
Output voltage:
1.0 V to 3.5 V, selectable in 0.05 V step.
Low equivalent series resistance capacitor : Ceramic capacitor of 1.0 µF or more can be used as the I/O capacitor.
Wide input voltage range:
1.5 V to 5.5 V
High-accuracy output voltage:
±1.0% (1.0 V to 1.45 V output product : ±15 mV)
Low dropout voltage:
160 mV typ. (products having the output of 2.6 V, IOUT = 300 mA)
Low current consumption:
During operation: 45 µA typ., 65 µA max.
Output current:
During power-off: 0.1 µA typ., 1.0 µA max.
Possible to output 300 mA (at VIN VOUT(S) + 1.0 V)*1
High ripple rejection:
70 dB typ. (at 1.0 kHz, VOUT = 1.0 V)
Built-in overcurrent protection circuit:
limits overcurrent of output transistor
Built-in power-off circuit:
Ensures long battery life.
Discharge shunt circuit can be selected.
Resistor is selectable in pull-up or pull-down
Small package:
SOT-89-5, SOT-23-5, HSNT-6A
Lead-free product
*1. Attention should be paid to the power dissipation of the package when the output current is large.
„ Applications
Power supply for battery-powered devices
Power supply for cellular phones
Power supply for portable equipment
„ Package
Package Name
SOT-89-5
SOT-23-5
HSNT-6A
Package
UP005-A
MP005-A
PJ006-A
Tape
UP005-A
MP005-A
PJ006-A
Drawing Code
Reel
UP005-A
MP005-A
PJ006-A
Land
PJ006-A
Stencil Opening
PJ006-A
Seiko Instruments Inc.
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www.DaHtaISGhHeeRt4IUP.PcoLmE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1135 Series
Rev.1.1_00
„ Block Diagrams
1. S-1135 Series A type
VIN
Overcurrent
protection circuit
*1
VOUT
Function
ON / OFF logic
Discharge shunt
function
Pull-up resistor
Pull-down resistor
Status
Active “H”
Available
None
Available
ON / OFF
Power-off
circuit
+
Reference
voltage circuit
*1
VSS
*1. Parasitic diode
Figure 1
2. S-1135 Series B type
VIN
Overcurrent
protection circuit
*1
VOUT
Function
ON / OFF logic
Discharge shunt
function
Pull-up resistor
Pull-down resistor
Status
Active “H”
Available
None
None
ON / OFF
Power-off
circuit
+
Reference
voltage circuit
*1
VSS
*1. Parasitic diode
Figure 2
2 Seiko Instruments Inc.


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www.DataShHeIeGt4HU.cRoImPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.1.1_00
S-1135 Series
3. S-1135 Series C type
VIN
Overcurrent
protection circuit
*1
ON / OFF
Power-off
circuit
+
Reference
voltage circuit
VOUT
Function
ON / OFF logic
Discharge shunt
function
Pull-up resistor
Pull-down resistor
Status
Active “H”
None
None
Available
VSS
*1. Parasitic diode
Figure 3
4. S-1135 Series D type
VIN
Overcurrent
protection circuit
*1
ON / OFF
Power-off
circuit
+
Reference
voltage circuit
VOUT
Function
ON / OFF logic
Discharge shunt
function
Pull-up resistor
Pull-down resistor
Status
Active “H”
None
None
None
VSS
*1. Parasitic diode
Figure 4
Seiko Instruments Inc.
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www.DaHtaISGhHeeRt4IUP.PcoLmE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1135 Series
Rev.1.1_00
5. S-1135 Series E type
VIN
Overcurrent
protection circuit
*1
VOUT
Function
ON / OFF logic
Discharge shunt
function
Pull-up resistor
Pull-down resistor
Status
Active “L”
Available
Available
None
ON / OFF
Power-off
circuit
+
Reference
voltage circuit
*1
VSS
*1. Parasitic diode
Figure 5
6. S-1135 Series F type
VIN
Overcurrent
protection circuit
*1
VOUT
Function
ON / OFF logic
Discharge shunt
function
Pull-up resistor
Pull-down resistor
Status
Active “L”
Available
None
None
ON / OFF
Power-off
circuit
+
Reference
voltage circuit
*1
VSS
*1. Parasitic diode
Figure 6
4 Seiko Instruments Inc.


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www.DataShHeIeGt4HU.cRoImPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.1.1_00
S-1135 Series
7. S-1135 Series G type
VIN
Overcurrent
protection circuit
*1
ON / OFF
Power-off
circuit
+
Reference
voltage circuit
VOUT
Function
ON / OFF logic
Discharge shunt
function
Pull-up resistor
Pull-down resistor
Status
Active “L”
None
Available
None
VSS
*1. Parasitic diode
Figure 7
8. S-1135 Series H type
VIN
Overcurrent
protection circuit
*1
ON / OFF
Power-off
circuit
+
Reference
voltage circuit
VOUT
Function
ON / OFF logic
Discharge shunt
function
Pull-up resistor
Pull-down resistor
Status
Active “L”
None
None
None
VSS
*1. Parasitic diode
Figure 8
Seiko Instruments Inc.
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www.DaHtaISGhHeeRt4IUP.PcoLmE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1135 Series
Rev.1.1_00
„ Product Name Structure
Users can select the product type, output voltage, and package type for the S-1135 Series. Refer to “1. Product
name” regarding the contents of product name, “2. Function list of product type” regarding the product type.
1. Product name
(1) SOT-89-5
S-1135
x
xx U5T1
G
Package abbreviation and IC packing specifications*1
U5T1: SOT-89-5, tape product
Output voltage*2
10 to 35
(e.g., when the output voltage is 1.0 V, it is
expressed as 10.)
Product type*3
A to H
*1. Refer to the tape specifications.
*2. If you request the product which has 0.05 V step, contact our sales office.
*3. Refer to “2. Function list of product type”.
(2) SOT-23-5, HSNT-6A
S-1135
x
xx xxxx
S
Package abbreviation and IC packing specifications*1
M5T1: SOT-23-5, tape product
A6T1: HSNT-6A, tape product
Output voltage*2
10 to 35
(e.g., when the output voltage is 1.0 V, it is
expressed as 10.)
Product type*3
A to H
*1. Refer to the tape specifications.
*2. If you request the product which has 0.05 V step, contact our sales office.
*3. Refer to “2. Function list of product type”.
6 Seiko Instruments Inc.


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Rev.1.1_00
S-1135 Series
2. Function list of product type
Product Type
A
B
C
D
E
F
G
H
ON / OFF Logic
Active high
Active high
Active high
Active high
Active low
Active low
Active low
Active low
Table 1
Discharge Shunt Function
Available
Available
None
None
Available
Available
None
None
Pull-up Resistor
None
None
None
None
Available
None
Available
None
Pull-down Resistor
Available
None
Available
None
None
None
None
None
Seiko Instruments Inc.
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www.DaHtaISGhHeeRt4IUP.PcoLmE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1135 Series
Rev.1.1_00
3. Product name list
3. 1 S-1135 series A type
ON / OFF logic:
Discharge shunt function:
Active high
Available
Pull-up resistor:
Pull-down resistor:
None
Available
Table 2
Output Voltage
SOT-89-5
SOT-23-5
HSNT-6A
1.0 V ±15 mV
S-1135A10-U5T1G
S-1135A10-M5T1S
S-1135A10-A6T1S
1.1 V ±15 mV
1.2 V ±15 mV
S-1135A11-U5T1G
S-1135A12-U5T1G
S-1135A11-M5T1S
S-1135A12-M5T1S
S-1135A11-A6T1S
S-1135A12-A6T1S
1.3 V ±15 mV
1.4 V ±15 mV
1.5 V ±1.0%
S-1135A13-U5T1G
S-1135A14-U5T1G
S-1135A15-U5T1G
S-1135A13-M5T1S
S-1135A14-M5T1S
S-1135A15-M5T1S
S-1135A13-A6T1S
S-1135A14-A6T1S
S-1135A15-A6T1S
1.6 V ±1.0%
1.7 V ±1.0%
S-1135A16-U5T1G
S-1135A17-U5T1G
S-1135A16-M5T1S
S-1135A17-M5T1S
S-1135A16-A6T1S
S-1135A17-A6T1S
1.8 V ±1.0%
1.85 V ±1.0%
1.9 V ±1.0%
S-1135A18-U5T1G
S-1135A1J-U5T1G
S-1135A19-U5T1G
S-1135A18-M5T1S
S-1135A1J-M5T1S
S-1135A19-M5T1S
S-1135A18-A6T1S
S-1135A1J-A6T1S
S-1135A19-A6T1S
2.0 V ±1.0%
2.1 V ±1.0%
S-1135A20-U5T1G
S-1135A21-U5T1G
S-1135A20-M5T1S
S-1135A21-M5T1S
S-1135A20-A6T1S
S-1135A21-A6T1S
2.2 V ±1.0%
2.3 V ±1.0%
2.4 V ±1.0%
S-1135A22-U5T1G
S-1135A23-U5T1G
S-1135A24-U5T1G
S-1135A22-M5T1S
S-1135A23-M5T1S
S-1135A24-M5T1S
S-1135A22-A6T1S
S-1135A23-A6T1S
S-1135A24-A6T1S
2.5 V ±1.0%
2.6 V ±1.0%
S-1135A25-U5T1G
S-1135A26-U5T1G
S-1135A25-M5T1S
S-1135A26-M5T1S
S-1135A25-A6T1S
S-1135A26-A6T1S
2.7 V ±1.0%
2.8 V ±1.0%
2.85 V ±1.0%
S-1135A27-U5T1G
S-1135A28-U5T1G
S-1135A2J-U5T1G
S-1135A27-M5T1S
S-1135A28-M5T1S
S-1135A2J-M5T1S
S-1135A27-A6T1S
S-1135A28-A6T1S
S-1135A2J-A6T1S
2.9 V ±1.0%
3.0 V ±1.0%
S-1135A29-U5T1G
S-1135A30-U5T1G
S-1135A29-M5T1S
S-1135A30-M5T1S
S-1135A29-A6T1S
S-1135A30-A6T1S
3.1 V ±1.0%
3.2 V ±1.0%
3.3 V ±1.0%
S-1135A31-U5T1G
S-1135A32-U5T1G
S-1135A33-U5T1G
S-1135A31-M5T1S
S-1135A32-M5T1S
S-1135A33-M5T1S
S-1135A31-A6T1S
S-1135A32-A6T1S
S-1135A33-A6T1S
3.4 V ±1.0%
3.5 V ±1.0%
S-1135A34-U5T1G
S-1135A35-U5T1G
S-1135A34-M5T1S
S-1135A35-M5T1S
S-1135A34-A6T1S
S-1135A35-A6T1S
Remark Please contact our sales office for products with specifications other than the above.
8 Seiko Instruments Inc.


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www.DataShHeIeGt4HU.cRoImPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.1.1_00
S-1135 Series
3. 2 S-1135 series B type
ON / OFF logic:
Discharge shunt function:
Active high
Available
Pull-up resistor:
Pull-down resistor:
None
None
Table 3
Output Voltage
SOT-89-5
SOT-23-5
HSNT-6A
1.0 V ±15 mV
S-1135B10-U5T1G
S-1135B10-M5T1S
S-1135B10-A6T1S
1.1 V ±15 mV
S-1135B11-U5T1G
S-1135B11-M5T1S
S-1135B11-A6T1S
1.2 V ±15 mV
S-1135B12-U5T1G
S-1135B12-M5T1S
S-1135B12-A6T1S
1.3 V ±15 mV
S-1135B13-U5T1G
S-1135B13-M5T1S
S-1135B13-A6T1S
1.4 V ±15 mV
S-1135B14-U5T1G
S-1135B14-M5T1S
S-1135B14-A6T1S
1.5 V ±1.0%
S-1135B15-U5T1G
S-1135B15-M5T1S
S-1135B15-A6T1S
1.6 V ±1.0%
S-1135B16-U5T1G
S-1135B16-M5T1S
S-1135B16-A6T1S
1.7 V ±1.0%
S-1135B17-U5T1G
S-1135B17-M5T1S
S-1135B17-A6T1S
1.8 V ±1.0%
S-1135B18-U5T1G
S-1135B18-M5T1S
S-1135B18-A6T1S
1.85 V ±1.0%
S-1135B1J-U5T1G
S-1135B1J-M5T1S
S-1135B1J-A6T1S
1.9 V ±1.0%
S-1135B19-U5T1G
S-1135B19-M5T1S
S-1135B19-A6T1S
2.0 V ±1.0%
S-1135B20-U5T1G
S-1135B20-M5T1S
S-1135B20-A6T1S
2.1 V ±1.0%
S-1135B21-U5T1G
S-1135B21-M5T1S
S-1135B21-A6T1S
2.2 V ±1.0%
S-1135B22-U5T1G
S-1135B22-M5T1S
S-1135B22-A6T1S
2.3 V ±1.0%
S-1135B23-U5T1G
S-1135B23-M5T1S
S-1135B23-A6T1S
2.4 V ±1.0%
S-1135B24-U5T1G
S-1135B24-M5T1S
S-1135B24-A6T1S
2.5 V ±1.0%
S-1135B25-U5T1G
S-1135B25-M5T1S
S-1135B25-A6T1S
2.6 V ±1.0%
S-1135B26-U5T1G
S-1135B26-M5T1S
S-1135B26-A6T1S
2.7 V ±1.0%
S-1135B27-U5T1G
S-1135B27-M5T1S
S-1135B27-A6T1S
2.8 V ±1.0%
S-1135B28-U5T1G
S-1135B28-M5T1S
S-1135B28-A6T1S
2.85 V ±1.0%
S-1135B2J-U5T1G
S-1135B2J-M5T1S
S-1135B2J-A6T1S
2.9 V ±1.0%
S-1135B29-U5T1G
S-1135B29-M5T1S
S-1135B29-A6T1S
3.0 V ±1.0%
S-1135B30-U5T1G
S-1135B30-M5T1S
S-1135B30-A6T1S
3.1 V ±1.0%
S-1135B31-U5T1G
S-1135B31-M5T1S
S-1135B31-A6T1S
3.2 V ±1.0%
S-1135B32-U5T1G
S-1135B32-M5T1S
S-1135B32-A6T1S
3.3 V ±1.0%
S-1135B33-U5T1G
S-1135B33-M5T1S
S-1135B33-A6T1S
3.4 V ±1.0%
S-1135B34-U5T1G
S-1135B34-M5T1S
S-1135B34-A6T1S
3.5 V ±1.0%
S-1135B35-U5T1G
S-1135B35-M5T1S
S-1135B35-A6T1S
Remark Please contact our sales office for products with specifications other than the above.
Seiko Instruments Inc.
9


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www.DaHtaISGhHeeRt4IUP.PcoLmE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1135 Series
Rev.1.1_00
3. 3 S-1135 series C type
ON / OFF logic:
Discharge shunt function:
Active high
None
Pull-up resistor:
Pull-down resistor:
None
Available
Table 4
Output Voltage
SOT-89-5
SOT-23-5
HSNT-6A
1.0 V ±15 mV
S-1135C10-U5T1G
S-1135C10-M5T1S
S-1135C10-A6T1S
1.1 V ±15 mV
S-1135C11-U5T1G
S-1135C11-M5T1S
S-1135C11-A6T1S
1.2 V ±15 mV
S-1135C12-U5T1G
S-1135C12-M5T1S
S-1135C12-A6T1S
1.3 V ±15 mV
S-1135C13-U5T1G
S-1135C13-M5T1S
S-1135C13-A6T1S
1.4 V ±15 mV
S-1135C14-U5T1G
S-1135C14-M5T1S
S-1135C14-A6T1S
1.5 V ±1.0%
S-1135C15-U5T1G
S-1135C15-M5T1S
S-1135C15-A6T1S
1.6 V ±1.0%
S-1135C16-U5T1G
S-1135C16-M5T1S
S-1135C16-A6T1S
1.7 V ±1.0%
S-1135C17-U5T1G
S-1135C17-M5T1S
S-1135C17-A6T1S
1.8 V ±1.0%
S-1135C18-U5T1G
S-1135C18-M5T1S
S-1135C18-A6T1S
1.85 V ±1.0%
S-1135C1J-U5T1G
S-1135C1J-M5T1S
S-1135C1J-A6T1S
1.9 V ±1.0%
S-1135C19-U5T1G
S-1135C19-M5T1S
S-1135C19-A6T1S
2.0 V ±1.0%
S-1135C20-U5T1G
S-1135C20-M5T1S
S-1135C20-A6T1S
2.1 V ±1.0%
S-1135C21-U5T1G
S-1135C21-M5T1S
S-1135C21-A6T1S
2.2 V ±1.0%
S-1135C22-U5T1G
S-1135C22-M5T1S
S-1135C22-A6T1S
2.3 V ±1.0%
S-1135C23-U5T1G
S-1135C23-M5T1S
S-1135C23-A6T1S
2.4 V ±1.0%
S-1135C24-U5T1G
S-1135C24-M5T1S
S-1135C24-A6T1S
2.5 V ±1.0%
S-1135C25-U5T1G
S-1135C25-M5T1S
S-1135C25-A6T1S
2.6 V ±1.0%
S-1135C26-U5T1G
S-1135C26-M5T1S
S-1135C26-A6T1S
2.7 V ±1.0%
S-1135C27-U5T1G
S-1135C27-M5T1S
S-1135C27-A6T1S
2.8 V ±1.0%
S-1135C28-U5T1G
S-1135C28-M5T1S
S-1135C28-A6T1S
2.85 V ±1.0%
S-1135C2J-U5T1G
S-1135C2J-M5T1S
S-1135C2J-A6T1S
2.9 V ±1.0%
S-1135C29-U5T1G
S-1135C29-M5T1S
S-1135C29-A6T1S
3.0 V ±1.0%
S-1135C30-U5T1G
S-1135C30-M5T1S
S-1135C30-A6T1S
3.1 V ±1.0%
S-1135C31-U5T1G
S-1135C31-M5T1S
S-1135C31-A6T1S
3.2 V ±1.0%
S-1135C32-U5T1G
S-1135C32-M5T1S
S-1135C32-A6T1S
3.3 V ±1.0%
S-1135C33-U5T1G
S-1135C33-M5T1S
S-1135C33-A6T1S
3.4 V ±1.0%
S-1135C34-U5T1G
S-1135C34-M5T1S
S-1135C34-A6T1S
3.5 V ±1.0%
S-1135C35-U5T1G
S-1135C35-M5T1S
S-1135C35-A6T1S
Remark Please contact our sales office for products with specifications other than the above.
10 Seiko Instruments Inc.


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www.DataShHeIeGt4HU.cRoImPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.1.1_00
S-1135 Series
3. 4 S-1135 series D type
ON / OFF logic:
Discharge shunt function:
Active high
None
Pull-up resistor:
Pull-down resistor:
None
None
Table 5
Output Voltage
SOT-89-5
SOT-23-5
HSNT-6A
1.0 V ±15 mV
S-1135D10-U5T1G
S-1135D10-M5T1S
S-1135D10-A6T1S
1.1 V ±15 mV
S-1135D11-U5T1G
S-1135D11-M5T1S
S-1135D11-A6T1S
1.2 V ±15 mV
S-1135D12-U5T1G
S-1135D12-M5T1S
S-1135D12-A6T1S
1.3 V ±15 mV
S-1135D13-U5T1G
S-1135D13-M5T1S
S-1135D13-A6T1S
1.4 V ±15 mV
S-1135D14-U5T1G
S-1135D14-M5T1S
S-1135D14-A6T1S
1.5 V ±1.0%
S-1135D15-U5T1G
S-1135D15-M5T1S
S-1135D15-A6T1S
1.6 V ±1.0%
S-1135D16-U5T1G
S-1135D16-M5T1S
S-1135D16-A6T1S
1.7 V ±1.0%
S-1135D17-U5T1G
S-1135D17-M5T1S
S-1135D17-A6T1S
1.8 V ±1.0%
S-1135D18-U5T1G
S-1135D18-M5T1S
S-1135D18-A6T1S
1.85 V ±1.0%
S-1135D1J-U5T1G
S-1135D1J-M5T1S
S-1135D1J-A6T1S
1.9 V ±1.0%
S-1135D19-U5T1G
S-1135D19-M5T1S
S-1135D19-A6T1S
2.0 V ±1.0%
S-1135D20-U5T1G
S-1135D20-M5T1S
S-1135D20-A6T1S
2.1 V ±1.0%
S-1135D21-U5T1G
S-1135D21-M5T1S
S-1135D21-A6T1S
2.2 V ±1.0%
S-1135D22-U5T1G
S-1135D22-M5T1S
S-1135D22-A6T1S
2.3 V ±1.0%
S-1135D23-U5T1G
S-1135D23-M5T1S
S-1135D23-A6T1S
2.4 V ±1.0%
S-1135D24-U5T1G
S-1135D24-M5T1S
S-1135D24-A6T1S
2.5 V ±1.0%
S-1135D25-U5T1G
S-1135D25-M5T1S
S-1135D25-A6T1S
2.6 V ±1.0%
S-1135D26-U5T1G
S-1135D26-M5T1S
S-1135D26-A6T1S
2.7 V ±1.0%
S-1135D27-U5T1G
S-1135D27-M5T1S
S-1135D27-A6T1S
2.8 V ±1.0%
S-1135D28-U5T1G
S-1135D28-M5T1S
S-1135D28-A6T1S
2.85 V ±1.0%
S-1135D2J-U5T1G
S-1135D2J-M5T1S
S-1135D2J-A6T1S
2.9 V ±1.0%
S-1135D29-U5T1G
S-1135D29-M5T1S
S-1135D29-A6T1S
3.0 V ±1.0%
S-1135D30-U5T1G
S-1135D30-M5T1S
S-1135D30-A6T1S
3.1 V ±1.0%
S-1135D31-U5T1G
S-1135D31-M5T1S
S-1135D31-A6T1S
3.2 V ±1.0%
S-1135D32-U5T1G
S-1135D32-M5T1S
S-1135D32-A6T1S
3.3 V ±1.0%
S-1135D33-U5T1G
S-1135D33-M5T1S
S-1135D33-A6T1S
3.4 V ±1.0%
S-1135D34-U5T1G
S-1135D34-M5T1S
S-1135D34-A6T1S
3.5 V ±1.0%
S-1135D35-U5T1G
S-1135D35-M5T1S
S-1135D35-A6T1S
Remark Please contact our sales office for products with specifications other than the above.
Seiko Instruments Inc.
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S-1135 Series
Rev.1.1_00
„ Pin Configuration
SOT-89-5
Top view
54
Table 6
Pin No.
Symbol
Description
1
VOUT
Output voltage pin
2
VSS
GND pin
3
NC*1
No connection
4 ON / OFF ON / OFF pin
5 VIN Input voltage pin
*1. The NC pin is electrically open.
The NC pin can be connected to VIN or VSS.
12 3
Figure 9
SOT-23-5
Top view
54
Table 7
Pin No.
Symbol
Description
1 VIN Input voltage pin
2
VSS
GND pin
3 ON / OFF ON / OFF pin
4
NC*1
No connection
5
VOUT
Output voltage pin
*1. The NC pin is electrically open.
The NC pin can be connected to VIN or VSS.
123
Figure 10
HSNT-6A
Top view
16
25
34
Bottom view
61
52
43
Table 8
Pin No.
Symbol
Description
1
VOUT
Output voltage pin
2
VSS
GND pin
3
NC*1
No connection
4 ON / OFF ON / OFF pin
5
NC*1
No connection
6 VIN Input voltage pin
*1. The NC pin is electrically open.
The NC pin can be connected to VIN or VSS.
*1
*1. Connect the heatsink of backside
at shadowed area to the board,
and set electric potential open or
GND.
However, do not use it as the
function of electrode.
Figure 11
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Rev.1.1_00
S-1135 Series
„ Absolute Maximum Ratings
Table 9
Item Symbol
Input voltage
Output voltage
SOT-89-5
VIN
VON / OFF
VOUT
Power dissipation SOT-23-5
HSNT-6A
PD
Operating ambient temperature
Storage temperature
*1. When mounted on board
Topr
Tstg
[Mounted board]
(1) Board size : 114.3 mm × 76.2 mm × t1.6 mm
(2) Name :
JEDEC STANDARD51-7
*2. When mounted on board
[Mounted board]
(1) Board size : 50 mm × 50 mm × t1.6 mm
(2) Wiring ratio : 50%
(Ta = 25°C unless otherwise specified)
Absolute Maximum Rating
Unit
VSS 0.3 to VSS + 6.0
VSS 0.3 to VIN + 0.3
VSS 0.3 to VIN + 0.3
1000*1
600*1
1000*2
V
V
V
mW
mW
mW
40 to +85
°C
40 to +125
°C
Caution The absolute maximum ratings are rated values exceeding which the product could suffer physical
damage. These values must therefore not be exceeded under any conditions.
1200
1000
800
600
SOT-89-5
HSNT-6A
400
200 SOT-23-5
0
0 50 100 150
Ambient Temperature (Ta) [°C]
Figure 12 Power Dissipation of Package
Seiko Instruments Inc.
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S-1135 Series
Rev.1.1_00
„ Electrical Characteristics
Item
Output voltage*1
Output current*2
Dropout voltage*3
Line regulation
Load regulation
Output voltage
temperature coefficient*4
Current consumption
during operation
Current consumption
during power-off
Input voltage
ON / OFF pin
input voltage “H”
ON / OFF pin
input voltage “L”
ON / OFF pin
input current “H”
ON / OFF pin
input current “L”
Ripple rejection
Short-circuit current
Symbol
VOUT(E)
IOUT
Vdrop
VOUT1
VINVOUT
VOUT2
VOUT
Ta VOUT
ISS1
ISS2
VIN
VSH
VSL
ISH
ISL
RR
Ishort
Table 10 (1 / 2)
Conditions
VIN = VOUT(S) + 1.0 V,
IOUT = 100 mA
1.0 V VOUT(S) < 1.5 V
1.5 V VOUT(S) 3.5 V
VIN VOUT(S) + 1.0 V
1.0 V VOUT(S) < 1.1 V
1.1 V VOUT(S) < 1.2 V
1.2 V VOUT(S) < 1.3 V
IOUT = 300 mA
1.3 V VOUT(S) < 1.4 V
1.4 V VOUT(S) < 1.5 V
1.5 V VOUT(S) < 2.0 V
2.0 V VOUT(S) < 2.6 V
2.6 V VOUT(S) 3.5 V
1.6 V VIN 5.5 V,
IOUT = 100 mA
1.0 V VOUT(S) < 1.1 V
VOUT(S) + 0.5 V VIN 5.5 V,
IOUT = 100 mA
1.1 V VOUT(S) 3.5 V
VIN = VOUT(S) + 1.0 V,
1.0 V VOUT(S) 2.0 V
1.0 mA IOUT 150 mA
2.0 V < VOUT(S) 3.5 V
VIN = VOUT(S) + 1.0 V,
1.0 V VOUT(S) 3.0 V
1.0 mA IOUT 300 mA
3.0 V < VOUT(S) 3.5 V
VIN = VOUT(S) + 1.0 V, IOUT = 100 mA,
40°C Ta +85°C
(Ta = 25°C unless otherwise specified)
Min.
Typ.
Max.
Unit
Test
Circuit
VOUT(S)
0.015
VOUT(S)
VOUT(S)
+ 0.015
V
1
VOUT(S)
× 0.99
300*5
VOUT(S)
VOUT(S)
× 1.01
V
mA
1
3
0.50 0.61 0.72 V
1
0.49 0.61 V 1
0.38 0.53 V 1
0.31 0.47 V 1
0.27 0.41 V 1
0.25 0.38 V 1
0.21 0.32 V 1
0.16 0.26 V 1
0.05 0.2 %/V 1
0.05 0.2 %/V 1
15 20 mV 1
15 25 mV 1
30 40 mV 1
30 45 mV 1
 ±130 ppm/°C 1
VIN = VOUT(S) + 1.0 V, ON / OFF pin = ON, no load
45 65 µA 2
VIN = VOUT(S) + 1.0 V, ON / OFF pin = OFF, no load
VIN = VOUT(S) + 1.0 V, RL = 1.0 k
determined by VOUT output level
VIN = VOUT(S) + 1.0 V, RL = 1.0 k
determined by VOUT output level
VIN = 5.5 V,
VON / OFF = 5.5 V
B / D / E / F / G / H type
A / C type
VIN = 5.5 V,
VON / OFF = 0 V
A / B / C / D / F / H type
E / G type
VIN = VOUT(S) + 1.0 V,
f = 1.0 kHz,
1.0 V VOUT(S) 1.2 V
Vrip = 0.5 Vrms,
IOUT = 50 mA
1.2 V < VOUT(S) 3.5 V
VIN = VOUT(S) + 1.0 V, ON / OFF pin = ON, VOUT = 0 V
1.5
1.0
0.1
1.0
0.1
1.0
0.1
2.5
2.5
70
65
100
1.0 µA 2
5.5 V
V4
0.3 V 4
0.1 µA 4
5.0 µA 4
0.1 µA 4
5.0 µA 4
dB 5
dB 5
mA 3
14 Seiko Instruments Inc.


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Rev.1.1_00
S-1135 Series
Table 10 (2 / 2)
S-1135 Series A / B / E / F type (With discharge shunt function)
Item Symbol
Conditions
Min.
Typ.
Max.
Unit
Test
Circuit
“L” output Nch
ON resistance
RLOW
VOUT = 0.1 V, VIN = 5.5 V
35  Ω 3
S-1135 Series A / C / E / G type (With pull-up / pull-down resistor)
Item Symbol
Conditions
Min.
Typ.
Max.
Unit
Test
Circuit
Power-off pull-up /
pull-down resistor
RPD
1.0 2.2 5.0 M4
*1. VOUT(S): Specified output voltage
VOUT(E): Actual output voltage
Output voltage when fixing IOUT(= 100 mA) and inputting VOUT(S) +1.0 V
*2. The output current at which the output voltage becomes 95% of VOUT(E) after gradually increasing the output current.
*3. Vdrop = VIN1 (VOUT3 × 0.98)
VOUT3 is the output voltage when VIN = VOUT(S) + 1.0 V and IOUT = 300 mA.
VIN1 is the input voltage at which the output voltage becomes 98% of VOUT3 after gradually decreasing the input
voltage.
*4. The change in temperature [mV/°C] is calculated using the following equation.
VOUT
Ta
[mV/°C]*1
=
VOUT(S)[V]*2
×
VOUT
TaVOUT
[ppm/°C]*3
÷
1000
*1. Change in temperature of the output voltage
*2. Specified output voltage
*3. Output voltage temperature coefficient
*5. The output current can be at least this value.
Due to restrictions on the package power dissipation, this value may not be satisfied. Attention should be paid to the
power dissipation of the package when the output current is large.
This specification is guaranteed by design.
Seiko Instruments Inc.
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S-1135 Series
Rev.1.1_00
„ Test Circuits
1. +
VIN VOUT
A
ON / OFF
VSS
+
V
Set to power
ON
Figure 13
2. +
A VIN
VOUT
ON / OFF
VSS
Set to VIN or GND
Figure 14
3. +
VIN VOUT
A
ON / OFF
VSS
Set to VIN or GND
+
V
Figure 15
4.
VIN VOUT
+
A ON / OFF
VSS
+
V RL
Figure 16
5.
VIN VOUT
ON / OFF
VSS
+
V RL
Set to power
ON
Figure 17
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Rev.1.1_00
S-1135 Series
„ Standard Circuit
Input
CIN*1
VIN VOUT
ON / OFF
VSS
Output
CL*2
Single GND
GND
*1. CIN is a capacitor for stabilizing the input.
*2. Ceramic capacitor of 1.0 µF or more can be used as CL.
Figure 18
Caution The above connection diagram and constant will not guarantee successful operation. Perform
thorough evaluation using the actual application to set the constant.
„ Condition of Application
Input capacitor (CIN) : 1.0 µF or more
Output capacitor (CL) : 1.0 µF or more (ceramic capacitor)
Caution A general series regulator may oscillate, depending on the external components. Confirm that no
oscillation occurs in the application for which the above capacitors are used.
„ Selection of Input and Output Capacitors (CIN, CL)
The S-1135 Series requires an output capacitor between the VOUT and VSS pin for phase compensation. Operation is
stabilized by a ceramic capacitor with an output capacitance of 1.0 µF or more over the entire temperature range.
When using an OS capacitor, tantalum capacitor, or aluminum electrolytic capacitor, the capacitance must be 1.0 µF or
more.
The value of the output overshoot or undershoot transient response varies depending on the value of the output
capacitor. The required capacitance of the input capacitor differs depending on the application.
The recommended capacitance for an application is CIN 1.0 µF, CL 1.0 µF; however, when selecting the output
capacitor, perform sufficient evaluation, including evaluation of temperature characteristics, on the actual device.
Seiko Instruments Inc.
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S-1135 Series
Rev.1.1_00
„ Explanation of Terms
1. Low dropout voltage regulator
This IC’s voltage regulator has the low dropout voltage due to its built-in low on-resistance transistor.
2. Output voltage (VOUT)
The accuracy of the output voltage is ensured at ±1.0% or ±15 mV*1 under the specified conditions of fixed input
voltage*2, fixed output current, and fixed temperature.
*1. When VOUT < 1.5 V : ±15 mV, When 1.5 V VOUT : ±1.0%
*2. Differs depending on the product.
Caution
If the above conditions change, the output voltage value may vary and exceed the accuracy
range of the output voltage. Refer to “„ Electrical Characteristics” and “„ Characteristics
(Typical Data)” for details.
3.
Line regulation
VOUT1
VINVOUT
Indicates the dependency of the output voltage on the input voltage. That is, the values show how much the output
voltage changes due to a change in the input voltage with the output current remaining unchanged.
4. Load regulation (VOUT2)
Indicates the dependency of the output voltage on the output current. That is, the values show how much the output
voltage changes due to a change in the output current with the input voltage remaining unchanged.
5. Dropout voltage (Vdrop)
Indicates the difference between input voltage VIN and the output voltage when; decreasing input voltage VIN
gradually until the output voltage has dropped out to the value of 98% of output voltage VOUT3, which is at VIN =
VOUT(S) + 1.0 V.
Vdrop = VIN1 (VOUT3 × 0.98)
18 Seiko Instruments Inc.


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Rev.1.1_00
S-1135 Series
6.
Temperature coefficient of output voltage
VOUT
TaVOUT
The shaded area in Figure 19 is the range where VOUT varies in the operating temperature range when the
temperature coefficient of the output voltage is ±130 ppm/°C.
VOUT
[V]
Example of S-1135B30 typ. products
+0.39 mV/°C
VOUT(E)*1
0.39 mV/°C
40 25
85 Ta [°C]
*1. VOUT(E) is the value of the output voltage measured at 25°C.
Figure 19
A change in the temperature of the output voltage [mV/°C] is calculated using the following equation.
VOUT
Ta
[mV/°C]*1
=
VOUT(S)[V]*2
×
VOUT
TaVOUT
[ppm/°C]*3
÷
1000
*1. Change in temperature of output voltage
*2. Specified output voltage
*3. Output voltage temperature coefficient
Seiko Instruments Inc.
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S-1135 Series
Rev.1.1_00
„ Operation
1. Basic operation
Figure 20 shows the block diagram of S-1135 Series.
The error amplifier compares the reference voltage (Vref) with Vfb, which is the output voltage resistance-divided by
feedback resistors Rs and Rf. It supplies the gate voltage necessary to maintain the constant output voltage which is
not influenced by the input voltage and temperature change, to the output transistor.
VIN
Current
supply
Vref
Error
amplifier
+
Reference voltage
circuit
*1
Rf
Vfb
Rs
VOUT
VSS
*1. Parasitic diode
Figure 20
2. Output transistor
In the S-1135 Series, a low on-resistance P-channel MOS FET is used as the output transistor.
Be sure that VOUT does not exceed VIN + 0.3 V to prevent the voltage regulator from being damaged due to inverse
current flowing from the VOUT pin through a parasitic diode to the VIN pin.
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Rev.1.1_00
S-1135 Series
3. ON / OFF pin
This pin starts and stops the regulator.
When the ON / OFF pin is set to the power-off level, the entire internal circuit stops operating, and the built-in P-
channel MOS FET output transistor between the VIN and VOUT pins is turned off, reducing current consumption
significantly.
Since the S-1135 Series A / B / E / F types have a built-in discharge shunt circuit to discharge the output
capacitance, the VOUT pin is forcibly set to VSS level. In the S-1135 Series C / D / G / H types, the VOUT pin is set
to VSS level through several hundred kinternal divided resistors between the VOUT and VSS pins. Note that the
current consumption increases when a voltage of 0.3 V to 1.0 V (Ta = 25°C) is applied to the ON / OFF pin.
The ON / OFF pin is configured as shown in Figures 21 and 22. In the S-1135 Series A / C / E / G types, the ON /
OFF pin is internally pulled up or pulled down to VSS when in the floating status, so the VOUT pin is set to the VSS
level. In the S-1135 Series B / D / F / H types, the ON / OFF pin is not internally pulled up or pulled down, so do
not use these types with the ON / OFF pin in the floating status. When the ON / OFF pin is not used in the S-1135
Series B / D / F / H types, connect the pin to the VIN pin in the B / D types, and connect it to the VSS pin in the F / H
types.
Table 11
Logic Type
ON / OFF Pin
Internal Circuits
VOUT Pin Voltage
Current Consumption
A / B / C / D “H”: Power-on
Operating
Set value
ISS1*1
A / B / C / D “L”: Power-off
Stopped
VSS level
ISS2
E/F/G/H
E/F/G/H
“H”: Power-off
“L”: Power-on
Stopped
Operating
VSS level
Set value
ISS2
ISS1*1
*1. Note that the IC’s current consumption increases as much as current flows into the pull-up / pull-down
resistor when; the ON / OFF pin is connected to VIN in the A / C type, the ON / OFF pin is connected to
VSS in the E / G type (Figure 21).
(1) S-1135 Series A / C / E / G Type
(2) S-1135 Series B / D / F / H Type
VIN VIN
E / G type
ON / OFF
A / C type
VSS
Figure 21
ON / OFF
VSS
Figure 22
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S-1135 Series
Rev.1.1_00
4. Discharge shunt function (S-1135 Series A / B / E / F types)
The S-1135 Series A / B / E / F types have a built-in discharge shunt circuit to discharge the output capacitance.
When the ON / OFF pin is set to power-off level, turns the output transistor off, and turns the discharge shunt
function on so that the output capacitor discharges. These types allow for the VOUT pin reach the VSS level faster
than the S-1135 Series C / D / G / H types that does not have a discharge shunt circuit.
Output transistor : OFF
*1
VIN
S-1135 Series
VOUT
ON / OFF
Power-off circuit
ON / OFF Pin
: Power-off
Discharge shunt function
: ON
Current flow
*1
VSS
*1. Parasitic diode
Figure 23
Output
capacitance
(CL)
GND
22 Seiko Instruments Inc.


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Rev.1.1_00
S-1135 Series
5. Overcurrent protection circuit
The S-1135 Series has an overcurrent protection circuit having the characteristics shown in “(1) Output Voltage vs.
Output Current (When Load Current Increases) (Ta = 25°C)” in “„ Characteristics (Typical Data)”, in order to
protect the output transistor against an excessive output current and short circuiting between the VOUT and VSS
pins. The current (Ishort) when the output pin is short-circuited is internally set at approx. 100 mA (typ.), and the
normal value is restored for the output voltage, if releasing a short circuit once.
Caution
Using the overcurrent protection circuit is to protect the output transistor from accidental
conditions such as short circuited load and the rapid and large current flow in the large capacitor.
The overcurrent protection circuit is not suitable for use under the short circuit status or large
current flowing (300 mA or more) that last long.
6. Pull-down / pull-up resistor (S-1135 Series A / C / E / G types)
In the S-1135 Series A / C / E / G types, the ON / OFF pin is internally pulled up to VIN or pulled down to VSS, so
the VOUT pin is in the VSS level when in the floating status.
Note that the IC’s current consumption increases as much as current flows into the pull-up / pull-down resistor of 2.2
M(typ.) when; the ON / OFF pin is connected to VIN in the A / C type, the ON / OFF pin is connected to VSS in
the E / G type.
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www.DaHtaISGhHeeRt4IUP.PcoLmE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1135 Series
Rev.1.1_00
„ Precautions
Wiring patterns for the VIN, VOUT and GND pins should be designed so that the impedance is low. When mounting
an output capacitor between the VOUT and VSS pin (CL) and a capacitor for stabilizing the input between VIN and
VSS pin (CIN), the distance from the capacitors to these pins should be as short as possible.
Note that the output voltage may increase when a series regulator is used at low load current (1.0 mA or less).
Note that the output voltage may increase due to the leakage current from a driver when a series regulator is used at
high temperature.
Generally a series regulator may cause oscillation, depending on the selection of external parts. The following
conditions are recommended for this IC. However, be sure to perform sufficient evaluation under the actual usage
conditions for selection, including evaluation of temperature characteristics. See “(5) Example of Equivalent Series
Resistance vs. Output Current Characteristics (Ta = 25°C)” in “„ Reference Data” for the equivalent series
resistance (RESR) of the output capacitor.
Input capacitor (CIN) :
Output capacitor (CL) :
1.0 µF or more
1.0 µF or more
The voltage regulator may oscillate when the impedance of the power supply is high and the input capacitor is small
or an input capacitor is not connected.
If the output capacitance is small, power supply’s fluctuation and the characteristics of load fluctuation become worse.
Sufficiently evaluate the output voltage’s fluctuation with the actual device.
A momentary overshoot may be output when the power supply suddenly increases, and the output capacitance is
small. It is therefore important to sufficiently evaluate the output voltage at power application in actual device.
The application conditions for the input voltage, output voltage, and load current should not exceed the package
power dissipation.
Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in electrostatic
protection circuit.
In determining the output current, attention should be paid to the output current value specified in Table 10 in “„
Electrical Characteristics” and footnote *5 of the table.
SII claims no responsibility for any disputes arising out of or in connection with any infringement by products including
this IC of patents owned by a third party.
24 Seiko Instruments Inc.


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www.DataShHeIeGt4HU.cRoImPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.1.1_00
S-1135 Series
„ Characteristics (Typical Data)
(1) Output Voltage vs. Output Current (When Load Current Increases) (Ta = 25°C)
VOUT = 1.0 V
1.2
1.0
0.8 VIN = 1.3 V
0.6 1.5 V
0.4
2.0 V
3.0 V
0.2 5.5 V
0
0
100 200 300 400 500 600
IOUT [mA]
VOUT = 2.5 V
3.0
2.5
2.0 VIN = 2.8 V
1.5
3.0 V
3.5 V
1.0
4.5 V
5.5 V
0.5
0
0
100 200 300 400 500 600
IOUT [mA]
VOUT = 3.5 V
4.0
3.5
3.0 VIN = 3.8 V
2.5 4.0 V
2.0 4.5 V
1.5 5.5 V
1.0
0.5
0
0 100 200 300 400 500 600
IOUT [mA]
Remark
In determining the output current, attention should
be paid to the following.
1. The minimum output current value and
footnote *5 in Table 10 in the “„ Electrical
Characteristics
2. The package power dissipation
(2) Output Voltage vs. Input Voltage (Ta = 25°C)
VOUT = 1.0 V
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.6
IOUT = 1 mA
IOUT = 30 mA
IOUT = 50 mA
IOUT = 100 mA
1.0 1.4 1.8 2.2
VIN [V]
VOUT = 3.5 V
3.7
3.6
3.5
3.4
3.3
3.2
3.1
3.0
3.0
IOUT = 1 mA
IOUT = 30 mA
IOUT = 50 mA
IOUT = 100 mA
3.5 4.0 4.5 5.0
VIN [V]
2.6
5.5
VOUT = 2.5 V
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2.0
2.0
IOUT = 1 mA
IOUT = 30 mA
IOUT = 50 mA
IOUT = 100 mA
2.5 3.0 3.5 4.0
VIN [V]
4.5
Seiko Instruments Inc.
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www.DaHtaISGhHeeRt4IUP.PcoLmE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1135 Series
Rev.1.1_00
(3) Dropout Voltage vs. Output Current
VOUT = 1.0 V
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
0
40°C
Ta = 85°C
25°C
50 100 150 200 250 300
IOUT [mA]
VOUT = 3.5 V
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0
0
Ta = 85°C
25°C
40°C
50 100 150 200 250 300
IOUT [mA]
(4) Dropout Voltage vs. Set Output Voltage
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
1.0
IOUT = 300 mA
150 mA
100 mA
50 mA 30 mA 10 mA 1 mA
1.5 2.0 2.5 3.0 3.5
VOTA [V]
VOUT = 2.5 V
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0
0
Ta = 85°C
25°C
40°C
50 100 150 200 250 300
IOUT [mA]
26 Seiko Instruments Inc.


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www.DataShHeIeGt4HU.cRoImPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.1.1_00
S-1135 Series
(5) Output Voltage vs. Ambient Temperature
VOUT = 1.0 V
1.10
1.05
1.00
0.95
0.90
40 25
VOUT = 3.5 V
3.8
3.7
3.6
3.5
3.4
3.3
3.2
40 25
0 25 50
Ta [°C]
0 25
Ta [°C]
50
75 85
75 85
(6) Current Consumption vs. Input Voltage
VOUT = 1.0 V
70
60
50
Ta = 85°C
40
30
20
40°C
25°C
10
0
012345
VIN [V]
6
VOUT = 3.5 V
70
60
50
40
30
20
10
0
0
1
Ta = 85°C
25°C
40°C
23456
VIN [V]
VOUT = 2.5 V
2.70
2.65
2.60
2.55
2.50
2.45
2.40
2.35
2.30
40 25
0 25
Ta [°C]
50
75 85
VOUT = 2.5 V
70
60
50
40
30
20
10
0
0
1
Ta = 85°C
40°C 25°C
23456
VIN [V]
Seiko Instruments Inc.
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www.DaHtaISGhHeeRt4IUP.PcoLmE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1135 Series
Rev.1.1_00
(7) Ripple Rejection (Ta = 25°C)
VOUT = 1.0 V
100
80
60
40
20
0
10
VIN = 2.0 V, CL = 1.0 µF
IOUT = 1 mA
IOUT = 30 mA
IOUT = 50 mA
IOUT = 100 mA
100 1k 10k 100k
Frequency [Hz]
1M
VOUT = 3.5 V
100
80
60
40
20
0
10
VIN = 4.5 V, CL = 1.0 µF
IOUT = 1 mA
IOUT = 30 mA
IOUT = 50 mA
IOUT = 100 mA
100 1k 10k 100k
Frequency [Hz]
1M
VOUT = 2.5 V
100
80
60
40
20
0
10
VIN = 3.5 V, CL = 1.0 µF
IOUT = 1 mA
IOUT = 30 mA
IOUT = 50 mA
IOUT = 100 mA
100 1k 10k 100k
Frequency [Hz]
1M
28 Seiko Instruments Inc.


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www.DataShHeIeGt4HU.cRoImPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
Rev.1.1_00
S-1135 Series
„ Reference Data
(1) Transient Response Characteristics when Input (Ta = 25°C)
VOUT = 1.0 V
IOUT = 100 mA, tr = tf = 5.0 µs, CL = 1.0 µF
1.30
4.0
1.25 3.5
1.20 3.0
1.15
1.10
VIN
2.5
2.0
1.05
1.00
VOUT
1.5
1.0
0.95 0.5
0.90 0
100 50 0 50 100 150 200 250 300 350
t [µs]
VOUT = 2.5 V
IOUT = 100 mA, tr = tf = 5.0 µs, CL = 1.0 µF
2.80
5.0
2.75
4.5
2.70
2.65
VIN
4.0
3.5
2.60
3.0
2.55
2.50
VOUT
2.5
2.0
2.45
2.40
1.5
1.0
100 50 0 50 100 150 200 250 300 350
t [µs]
VOUT = 3.5 V
IOUT = 100 mA, tr = tf = 5.0 µs, CL = 1.0 µF
3.80
6.0
3.75 5.5
3.70
3.65
VIN
5.0
4.5
3.60 4.0
3.55
3.50
VOUT
3.5
3.0
3.45 2.5
3.40 2.0
100 50 0 50 100 150 200 250 300 350
t [µs]
(2) Transient Response Characteristics of Load (Ta = 25°C)
VOUT = 1.0 V
VIN = 2.0 V, CL = 1.0 µF, CIN = 1.0 µF, IOUT = 50 100 mA
1.20 150
1.15
1.10
IOUT
100
50
1.05
1.00
0.95
VOUT
0
50
100
0.90 150
100 50 0 50 100 150 200 250 300 350
t [µs]
VOUT = 3.5 V
VIN = 4.5 V, CL = 1.0 µF, CIN = 1.0 µF, IOUT = 50 100 mA
3.70 150
3.65
3.60
IOUT
100
50
3.55
3.50
3.45
VOUT
0
50
100
3.40 150
100 50 0 50 100 150 200 250 300 350
t [µs]
VOUT = 2.5 V
VIN = 3.5 V, CL = 1.0 µF, CIN = 1.0 µF, IOUT = 50 100 mA
2.70 150
2.65
2.60
IOUT
100
50
2.55
2.50
VOUT
0
50
2.45 100
2.40 150
100 50 0 50 100 150 200 250 300 350
t [µs]
Seiko Instruments Inc.
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www.DaHtaISGhHeeRt4IUP.PcoLmE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
S-1135 Series
Rev.1.1_00
(3) Transient Response Characteristics of ON / OFF Pin (Ta = 25°C)
VOUT = 1.0 V
VIN = 2.0 V, tr = 5.0 µs, CL = 1.0 µF, CIN = 1.0 µF, IOUT = 100 mA
2.4 3
2.0 2
1.6
VON / OFF
1
1.2 0
0.8
VOUT
1
0.4 2
0
50
0
3
50 100 150 200
t [µs]
VOUT = 3.5 V
VIN = 4.5 V, tr = 5.0 µs, CL = 1.0 µF, CIN = 1.0 µF, IOUT = 100 mA
66
5
VON / OFF
4
42
3
VOUT
0
2 2
1 4
0
50
0
6
50 100 150 200
t [µs]
VOUT = 2.5 V
VIN = 3.5 V, tr = 5.0 µs, CL = 1.0 µF, CIN = 1.0 µF, IOUT = 100 mA
66
54
4
VON / OFF
2
30
2
VOUT
2
1 4
0
50
0
6
50 100 150 200
t [µs]
(4) Output Capacitance vs. Characteristics of Discharge Time (Ta = 25°C)
S-1135 Series A / B type (with discharge shunt function)
VIN = VOUT + 1.0 V, IOUT = no load
VON / OFF = VOUT + 1.0 V VSS, tf = 1 µs
2.5
2.0
VOUT(s) = 1.0 V
2.5 V
1.5 3.5 V
VON / OFF
1.0
0.5
0
0
2 4 6 8 10 12
CL [µF]
VOUT
1 µs
tDSC
VSS
VOUT × 10%
VIN = VOUT + 1.0 V
VON / OFF = VOUT + 1.0 V VSS
Figure 24 Measurement Condition of Discharge Time
30 Seiko Instruments Inc.



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